Submission #701052

#	Time	Username	Problem	Language	Result	Execution time	Memory
701052		mychecksedad	Detecting Molecules (IOI16_molecules)	C++17	9 / 100	1 ms	292 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define all(x) x.begin(), x.end()

vector<int> find_subset(int l, int r, vector<int> w) {
    vector<pair<int, int>> a;
    for(int i = 0; i < w.size(); ++i) a.pb({w[i], i});
    sort(all(a));
    if(r < a[0].first){
        return vector<int>(0);
    }
    int s = 0;
    deque<int> ans;
    for(int i = 0; i < a.size(); ++i){
        if(s + a[i].first > r){
            ans.pop_front();
            ans.pb(a.back().second);
            s -= a[0].first;
            s += a.back().first;
            if(s > r){
                return vector<int>(0);
            }
            break;
        }
        s += a[i].first;
        ans.pb(a[i].second);
        if(s >= l && s <= r) break;
    }
    if(s < l){
        return vector<int>(0);
    }
    vector<int> anss;
    for(int v: ans) anss.pb(v);
    sort(all(anss));
    return anss;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:9:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |     for(int i = 0; i < w.size(); ++i) a.pb({w[i], i});
      |                    ~~^~~~~~~~~~
molecules.cpp:16:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |     for(int i = 0; i < a.size(); ++i){
      |                    ~~^~~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 0 / 10
• Subtask 3: 0 / 12
• Subtask 4: 0 / 15
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31